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Comparison of bench‐scale decortication devices to fractionate bran from sorghum

机译：台阶截止装置与高粱分馏麸的比较

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Background and objectives Decortication of sorghum grain separates its pericarp (bran) from the endosperm which could have beneficial impacts on ethanol production while producing value‐added coproducts. The goal of this study was to compare three bench‐scale devices (barley pearler, scarifier, and rice polisher) to decorticate sorghum grain and analyze the composition of each fraction. Findings The scarifier and barley pearler produced bran with similar contents of protein (~10%), starch (~40%), and total dietary fiber (~40%). In a single batch to produce 10% (w/w) bran, the scarifier processed more sorghum to produce more bran (12?g/150?g) than the barley pearler (7?g/75?g). The rice polisher produced bran (43?g/500?g) with higher content of oil (~12%), protein (~11%), ash (~6%), and starch (~47%), but total dietary fiber was lower (~29%). The scarifier bran had the highest wax content (1.9%), while the rice polisher and barley pearler brans had similar lower wax content (1.6%). Conclusions The composition of bran from the rice polisher indicated that more germ and some endosperm were removed during decortication as compared to the other devices. Significance and novelty There is a need for producing bran between laboratory‐ and pilot‐scale with efficient separation of the pericarp from the endosperm. This research is the first to compare the composition of all sorghum fractions, including a wax analysis, from three types of bench‐scale decortication devices.
机译：背景和目标高粱籽粒的偏移将其PericaRP（麸皮）与胚乳中的肠溶物分离，这可能对乙醇生产产生有益的影响，同时产生增值副产物。本研究的目标是将三个台式设备（大麦Pearler，废料和稻米抛光机）进行比较，以使高粱晶粒滴下并分析每个馏分的组成。调查结果稀释炉和大麦珠宝生产的麸皮具有类似蛋白质（〜10％），淀粉（〜40％）和总膳食纤维（〜40％）。在单个批次以生产10％（W / W）麸皮中，废物炉加工更多高粱，比大麦珠宝（7？G / 75？G）产生更多的麸质以产生更多的麸皮（12？G / 150？g）。稻米抛光机生产麸皮（43×g /500μm），含量较高（〜12％），蛋白质（〜11％），灰分（〜6％）和淀粉（〜47％），但膳食总量纤维较低（〜29％）。稀释剂麸皮的蜡含量最高（1.9％），而米抛光机和大麦珠宝膏具有相似的较低蜡含量（1.6％）。结论与其他装置相比，稻米抛光机的麸皮组成表明，在截据期间除去了更多的胚芽和一些胚乳。意义和新颖性有必要在实验室和试验规模之间产生麸皮，并有效地分离胚乳从胚乳中分离。该研究是第一个比较所有高粱级分的组成，包括蜡分析，包括来自三种类型的长凳凝固截据装置。

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